High Alumina Brick

Description

High alumina bricks (LZ Series) are engineered refractories with alumina content ranging from 48% to 80%, offering excellent high-temperature strength, thermal shock resistance, and slag erosion resistance. Available in five standard grades—LZ-48 through LZ-80—these bricks are widely adopted in blast furnace shells, hot blast stove checkerwork, reheating furnaces, and various high-temperature industrial vessels. JHR’s high alumina brick product line serves ironmaking, steelmaking, and non-ferrous processing operations across diverse furnace positions requiring reliable refractory performance. The LZ Series bricks are manufactured using premium raw materials with strict quality control to ensure consistent performance and dimensional accuracy for demanding metallurgical environments.

Key Features

1. Available in five standard grades (LZ-48 to LZ-80) with alumina content from 48% to 80%
2. Excellent high-temperature compressive strength and creep resistance at elevated service temperatures
3. Superior thermal shock stability for cyclic heating applications in metallurgical furnaces
4. Strong resistance to slag erosion and penetration for extended service life in harsh environments
5. Consistent dimensional accuracy and excellent brick-to-brick bonding for seamless lining installation

Application

• Blast furnace body linings and hot blast stove checkerwork in ironmaking operations
• Reheating furnace and walking-beam furnace walls in steel rolling mills
• Ladle slag lines and tundish working layer components in continuous casting
• Cement kiln transition zones and preheater cyclone segments
• Non-ferrous metallurgical furnaces including aluminum holding and copper smelting vessels

Technical Specifications

Physical and chemical performance indicators of high-alumina bricks